A power transformer shell forming processing equipment

Abstract

The present application relates to the technical fields of metal forming, in particular to a power transformer shell forming processing equipment, comprising a lower base body, a forming seat, a floating material pressing surface, a horizontal guide rail, a moving base, a clamping mechanism, a boosting mechanism, a linkage mechanism, and an upper base body. The adaptive rotation of the clamping mechanism and the horizontal sliding compensation of the moving base realize dynamic follow-up of the plate deformation trajectory, ensure that the clamping force in the initial bending stage is perpendicular to the plate end, convert passive pulling into smooth follow-up, eliminate additional tensile stress at the end, and avoid stretching tearing and stress concentration. In the late bending stage, the application triggers the boosting mechanism to push the horizontal guide rail to flip, providing a strong lateral active thrust for the bending area of the plate. This "active force compensation" mechanism effectively shares the forming load of the main oil cylinder, avoiding thinning and breaking of the plate due to the downward pressure of the forming punch and single-point stress.

Description

Technical Field

[0001] This invention relates to the field of metal forming technology, and in particular to a forming and processing equipment for power transformer shells. Background Technology

[0002] Transformers are core equipment in power systems used for voltage transformation, with oil-immersed transformers being the most widely used. The interior of an oil-immersed transformer is filled with transformer oil for insulation and heat dissipation, and its outer casing, as the oil container, must possess extremely high sealing performance. Since welds are weak points in the casing's leak prevention, they are prone to leakage under long-term operational vibration and thermal expansion and contraction. Therefore, reducing the number of welds on the casing is crucial for improving sealing reliability. To this end, the main body of the casing often uses a U-shaped forming process from a single piece of steel plate, reducing longitudinal welds on the sides and structurally lowering the risk of oil leakage.

[0003] In the existing power transformer shell forming process, such as Chinese Patent No. CN120527121A, a power transformer shell and processing method are disclosed, including a transformer shell body, the outside of which is provided with a plurality of symmetrical heat sinks. A power transformer shell processing method includes the transformer shell body as described above, including the following steps: cutting large coils or large plates into blanks suitable for subsequent stamping processes.

[0004] In the aforementioned prior art, the plate position on the stamping device is calibrated to ensure precise movement to the optimal stamping position. However, this prior art does not consider that in the bending of deep U-shaped parts, the plate is not simply bent in two dimensions; its ends undergo complex three-dimensional spatial displacement (warping and lateral shrinkage). Furthermore, existing technologies generally employ a rigid forming mode of "static positioning clamping + unidirectional stamping," which contains an inherent contradiction: on the one hand, the static constraint blocks the material's natural rheological path. Traditional fixtures remain fixed, forcing the plate into a passive, hard-pull state during the later stages of bending, subjecting the ends to extreme unintended tensile stress, easily inducing tearing and stress concentration; on the other hand, unidirectional force leads to stagnation of plastic flow in the later stages of forming. As the bending angle increases, the resistance of unidirectional stamping rises exponentially, preventing material from smoothly replenishing the bending area, resulting in severe local thinning and the accumulation of a large amount of elastic strain energy that cannot be released, leading to severe springback and dimensional distortion after demolding.

[0005] Therefore, there is still room for improvement in the aforementioned existing technologies. Summary of the Invention

[0006] In order to avoid tensile tearing at the ends of the sheet metal during bending and forming and to improve the forming quality, this application provides a power transformer shell forming and processing equipment.

[0007] The technical solution of the power transformer shell forming and processing equipment provided in this application is as follows:

[0008] A power transformer casing forming and processing equipment includes a lower base with a forming seat installed inside, the forming seat having a forming groove in the middle; a floating pressure surface, which is slidably mounted on the lower base via a nitrogen spring, the floating pressure surface being located in the forming groove; a horizontal guide rail, which is disposed in a groove formed on the surface of the forming seat; a movable base, which is slidably mounted on the horizontal guide rail, a resistance spring connecting the movable base and the horizontal guide rail; a clamping mechanism, which is disposed on the movable base and can adaptively rotate to follow the tilting angle of the plate during bending; a boosting mechanism, which is disposed on the forming seat and is used to drive the horizontal guide rail for boosting forming during plate bending; a linkage mechanism, which is disposed on the horizontal guide rail and links the boosting mechanism and the clamping mechanism; and an upper base, which is slidably guided to the lower base via guide posts, the lower end of the upper base having a forming punch that mates with the forming seat.

[0009] Preferably, the inner end of the horizontal guide rail is rotatably mounted in the lower groove via a pin, and a guide rail groove is formed on the surface of the horizontal guide rail.

[0010] Preferably, the clamping mechanism includes a clamping seat, which is rotatably mounted on a movable base via a rotating rod, and a first spring is connected between the clamping seat and the rotating rod, the first spring serving as a reset function; an upper clamping plate, which is slidably mounted on the clamping seat, and a hydraulic rod is fitted between the upper clamping plate and the clamping seat; and a limiting component, which limits the angle of the clamping seat when the horizontal guide rail rotates.

[0011] Preferably, the limiting component includes a limiting clip that is slidably mounted on a movable base, a second spring connecting the limiting clip and the movable base, the second spring serving a reset function, a limiting groove on the side of the clamping seat that engages with the limiting clip; an extrusion protrusion mounted on the lower outer side of the limiting clip; and a fixed extrusion block mounted on the forming seat, the side of the fixed extrusion block having a mating groove that engages with the extrusion protrusion.

[0012] Preferably, the mating groove is located at the lower end of the fixed extrusion block. The position of the extrusion protrusion in the initial state corresponds to the position of the mating groove. The fixed extrusion block has a certain height. After the extrusion protrusion is separated from the mating groove, it changes to continuous contact with the side of the fixed extrusion block. The height of the fixed extrusion block ensures that the extrusion protrusion will not be separated.

[0013] Preferably, the linkage mechanism includes an outward protrusion mounted on the lower surface of the clamping seat; a pressing member slidably disposed on the movable base, with a fifth spring connecting the pressing member and the movable base, the fifth spring serving a reset function, and the outward protrusion and the pressing member in a pressing fit; a trigger plate slidably disposed in the movable base, with a sixth spring connecting the trigger plate and the movable base, the sixth spring serving a reset function, and the trigger plate in a pressing fit with the upper end of the unlocking block; and a trigger block mounted on the lower surface of the trigger plate, the trigger block corresponding to the position of the inductive switch.

[0014] Preferably, the boosting mechanism includes a push cylinder, the lower end of which is rotatably mounted on the molding seat via a cylinder mounting base, and the output end of the push cylinder is connected to the horizontal guide rail via a pin; an inductive switch, which is installed in the lower groove, the inductive switch being a prior art sensor, a power supply being provided on the molding seat, and the inductive switch, the power supply, and the push cylinder being electrically connected; and a locking component, which locks the position between the horizontal guide rail and the lower groove.

[0015] Preferably, the locking assembly includes a locking block mounted on the lower surface of the horizontal guide rail; a locking pin slidably disposed on the locking block, a third spring connecting the locking pin and the locking block, the third spring acting as a reset mechanism, and a locking groove corresponding to the position of the locking pin being formed on the side wall of the lower groove; and an unlocking block slidably disposed in the locking block, a fourth spring connecting the unlocking block and the locking block, the fourth spring acting as a reset mechanism, the lower end of the unlocking block being located between the locking pins, and an unlocking groove being formed on the side of the unlocking block. In the initial state, the unlocking block, located between the locking pins, presses the locking pins to both sides, at which time the third spring is in a compressed state.

[0016] In summary, the beneficial technical effects of this application are as follows:

[0017] The power transformer shell forming and processing equipment of the present invention achieves dynamic follow-up of the deformation trajectory of the plate through the adaptive rotation of the clamping mechanism and the horizontal sliding compensation of the moving base. This ensures that the clamping force is perpendicular to the plate end in the initial bending stage, transforms passive pulling into smooth follow-up, eliminates additional tensile stress at the end, and avoids tensile tearing and stress concentration.

[0018] In the later stages of bending, this application triggers a booster mechanism, which drives the cylinder to rotate the horizontal guide rail, providing a strong lateral active thrust to the bending zone of the sheet metal. This "active force compensation" mechanism effectively distributes the forming load of the main hydraulic cylinder, avoiding thinning and breakage of the sheet metal caused by single-point stress due to the pressing of the forming punch. It also provides another form of protection for the ends of the sheet metal (at this time, the clamping mechanism no longer rotates, but instead the horizontal guide rail rotates, which can also eliminate the additional tensile stress at the ends of the sheet metal).

[0019] Furthermore, the flipping boost at the bending endpoint is equivalent to a lateral "precision pressure correction" of the bending radius, which greatly releases the residual stress inside the material and effectively overcomes the springback distortion after demolding the U-shaped part, ensuring extremely high dimensional accuracy and right-angle stability of the shell. By eliminating end tearing and localized stress concentration, the microstructure of the plate bending zone is more dense and continuous. For oil-immersed transformer shells, this damage-free, low-residual-stress forming quality significantly improves the overall sealing reliability and long-term fatigue life of the shell as an oil-containing container. Attached Figure Description

[0020] Figure 1 This is a first three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure between the substrate, the molding seat, and the floating pressure surface of the present invention;

[0023] Figure 4 This is a top view of the lower base, forming seat, forming groove, floating pressure surface, nitrogen spring, horizontal guide rail, lower groove, moving base, resistance spring, clamping mechanism, boosting mechanism, and linkage mechanism of the present invention.

[0024] Figure 5 This is the present invention. Figure 4 A partial structural cross-sectional view at point AA;

[0025] Figure 6 This is a schematic diagram of the structure between the locking block, locking pin, locking groove, and unlocking block of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure between the locking pin, the unlocking block, and the unlocking groove of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure between the clamping mechanism and the linkage mechanism of the present invention;

[0028] Figure 9 This is the present invention. Figure 4 A partial structural cross-sectional view at point BB;

[0029] Figure 10 This is a schematic diagram of the structure between the limiting clip, the extrusion protrusion, the fixing extrusion block, and the mating groove of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 1. Lower base; 2. Forming seat; 3. Floating pressure surface; 4. Horizontal guide rail; 5. Moving base; 6. Clamping mechanism; 7. Boosting mechanism; 8. Linkage mechanism; 9. Upper base; 21. Forming groove; 221. Locking groove; 22. Lower groove; 31. Nitrogen spring; 41. Guide rail groove; 51. Resistance spring; 61. Clamping seat; 62. Rotating rod; 63. Upper clamping plate; 64. Hydraulic rod; 65. Limiting component; 611. Limiting slot; 71. Push cylinder; 72. Inductive switch; 73. Power supply; 74. Locking assembly; 81. Outer protrusion; 82. Extrusion part; 83. Trigger plate; 84. Trigger block; 91. Guide post; 92. Forming punch; 651. Limiting component; 652. Extrusion protrusion; 653. Fixed extrusion block; 654. Mating groove; 741. Locking block; 742. Locking pin; 743. Unlocking block; 744. Unlocking groove. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0032] This application discloses a power transformer shell forming and processing equipment. Through dual adaptive servoing, it realizes dynamic full attitude matching and active force compensation in the forming process, eliminates forming interference, and achieves high-precision bending.

[0033] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, a power transformer casing forming and processing equipment includes a lower base 1, inside which a forming seat 2 is installed, and a forming groove 21 is provided in the middle of the forming seat 2; a floating pressure surface 3, which is slidably disposed on the lower base 1 by a nitrogen spring 31, and the floating pressure surface 3 is located in the forming groove 21; a horizontal guide rail 4, which is disposed in a groove 22 opened on the surface of the forming seat 2; a movable base 5, which is slidably disposed on the horizontal guide rail 4, and a resistance spring 51 is connected between the movable base 5 and the horizontal guide rail 4; and a clamping mechanism 6, which is disposed on... On the movable base 5, the clamping mechanism 6 can adaptively rotate to follow the tilting angle of the plate during bending; the boosting mechanism 7 is disposed on the forming base 2, and the boosting mechanism 7 is used to drive the horizontal guide rail 4 to assist in forming during plate bending; the linkage mechanism 8 is disposed on the horizontal guide rail 4, and the linkage mechanism 8 links the boosting mechanism 7 and the clamping mechanism 6 together; the upper base 9 is slidably guided to the lower base 1 through the guide post 91, and the lower end of the upper base 9 is equipped with a forming punch 92 that cooperates with the forming base 2.

[0034] In actual operation, the sheet metal is placed on the floating pressure surface 3, and the clamping mechanism 6 clamps and fixes both ends of the sheet metal. Then, the upper base 9 descends (the upper base 9 is installed on a machine tool in the site, and the machine tool drives the upper base 9 to move). The forming punch 92 follows the upper base 9 and descends to contact the sheet metal. At this time, the forming punch 92 and the floating pressure surface 3 clamp the middle part of the sheet metal. As the forming punch 92 continues to descend, the floating pressure surface 3 is squeezed down, and the middle part of the sheet metal (the forming punch 92 and the floating pressure surface 3 only clamp the middle part of the sheet metal) gradually descends into the forming groove 21. The two ends of the sheet metal gradually warp upwards, preparing for bending. At this time, the clamping mechanism 6 rotates as the two ends of the sheet metal warp upwards, so that the direction of the clamping force is perpendicular to the two ends of the sheet metal. Simultaneously, the clamping mechanism 6 slides left and right along the horizontal guide rail 4 (because the distance between the ends of the sheet metal shortens in the left and right directions during bending, the clamping mechanism 6 adapts to this change). As bending progresses, when the clamping mechanism 6 is pulled and rotated to a certain angle, the linkage mechanism 8 is triggered. The triggered linkage mechanism 8 activates the push mechanism 7, unlocks the position of the horizontal guide rail 4, and the push mechanism 7 drives the horizontal guide rail 4 to flip, locking the angle of the clamping mechanism 6. The flipped horizontal guide rail 4 assists the sheet metal in bending (the sum of the flipping angle of the horizontal guide rail 4 and the rotation angle of the linkage mechanism 8 is ninety degrees). After bending, the upper base 9 rises, and the nitrogen spring 31 pushes the floating pressure surface 3 to rise and reset, realizing the ejection and reset of the formed sheet metal. This application, through a dual adaptation mechanism of first following and then flipping and pushing, ensures that the mechanism is always coordinated with the deformation state of the sheet metal during the bending process, reducing bending resistance and guaranteeing forming quality.

[0035] Reference Figure 3 , Figure 5 As shown, the inner end of the horizontal guide rail 4 is rotatably mounted in the lower groove 22 via a pin, and a guide rail groove 41 is formed on the surface of the horizontal guide rail 4.

[0036] Reference Figure 5 , Figure 8 As shown, the clamping mechanism 6 includes a clamping seat 61, which is rotatably mounted on the movable base 5 via a rotating rod 62. A first spring is connected between the clamping seat 61 and the rotating rod 62, and the first spring serves as a reset mechanism. An upper clamping plate 63 is slidably mounted on the clamping seat 61, and a hydraulic rod 64 is fitted between the upper clamping plate 63 and the clamping seat 61. A limiting component 65 limits the angle of the clamping seat 61 when the horizontal guide rail 4 rotates.

[0037] In actual operation, the hydraulic rod 64 controls the upper clamping plate 63 to descend, thereby cooperating with the clamping seat 61 to clamp and fix the plate. When the plate warps upward at the end during forming, on the one hand, the clamping seat 61 rotates due to the upward warping of the plate to compensate for the warping of the plate. On the other hand, the movable base 5 slides on the horizontal guide rail 4 due to the upward warping of the plate to compensate for the contraction of the plate in the left and right directions. When the clamping seat 61 rotates to a certain angle, the linkage mechanism 8 is triggered, which triggers the horizontal guide rail 4 to flip. When the horizontal guide rail 4 flips and disengages from the lower groove 22, the limiting component 65 is triggered, and the angle of the clamping seat 61 is locked.

[0038] Reference Figure 9 , Figure 10 As shown, the limiting component 65 includes a limiting clip 651, which is slidably disposed on the movable base 5. A second spring is connected between the limiting clip 651 and the movable base 5, and the second spring plays a reset role. A limiting groove 611 is provided on the side of the clamping seat 61 to engage with the limiting clip 651. An extrusion protrusion 652 is installed on the lower outer side of the limiting clip 651. A fixed extrusion block 653 is installed on the forming seat 2. A mating groove 654 is provided on the side of the fixed extrusion block 653 to engage with the extrusion protrusion 652.

[0039] Reference Figure 9 , Figure 10 As shown, the mating groove 654 is located at the lower end of the fixed extrusion block 653. The extrusion protrusion 652 in the initial state corresponds to the position of the mating groove 654. The fixed extrusion block 653 has a certain height. After the extrusion protrusion 652 is separated from the mating groove 654, it changes to continuous contact with the side of the fixed extrusion block 653. The height of the fixed extrusion block 653 ensures that the extrusion protrusion 652 will not be separated.

[0040] In actual operation, when the horizontal guide rail 4 is flipped, the extrusion protrusion 652 is extruded and the mating groove 654 is extruded. The extrusion protrusion 652 is extruded and slides, so that the limiting card 651 slides into the limiting card groove 611 to lock the position of the clamping seat 61. This prevents the clamping seat 61 from being in a state of random rotation when the horizontal guide rail 4 is flipped, thus avoiding motion interference and other situations.

[0041] Reference Figure 5 , Figure 8As shown, the linkage mechanism 8 includes an external protrusion 81, which is installed on the lower surface of the clamping seat 61; a pressing member 82, which is slidably disposed on the movable base 5, and a fifth spring is connected between the pressing member 82 and the movable base 5, the fifth spring serving as a reset function, and the external protrusion 81 and the pressing member 82 are in a pressing fit; a trigger plate 83, which is slidably disposed in the movable base 5, and a sixth spring is connected between the trigger plate 83 and the movable base 5, the sixth spring serving as a reset function, and the upper end of the trigger plate 83 is in a pressing fit with the unlocking block 743; and a trigger block 84, which is installed on the lower surface of the trigger plate 83, and the trigger block 84 corresponds to the position of the inductive switch 72.

[0042] In actual operation, when the clamping seat 61 rotates, the outer protrusion 81 rotates with the clamping seat 61. The rotating outer protrusion 81 squeezes the squeezing member 82. The squeezing member 82 is squeezed and moves downward, thereby pressing the trigger plate 83 to move downward. The trigger block 84 moves downward with the trigger plate 83, thereby triggering the booster mechanism 7.

[0043] On the other hand, the protruding part 81 drives the extruding part 82 to descend in a preset direction, but the descending stroke of the extruding part 82 is limited. When the extruding part 82 descends to the preset stroke (contacts the lower limiting part), the reaction force generated by the extruding part 82 restricts the continued rotation of the protruding part 81, thereby realizing the limiting function of the rotation angle of the protruding part 81.

[0044] Reference Figures 5-7 As shown, the boosting mechanism 7 includes a push cylinder 71, the lower end of which is rotatably mounted on the molding seat 2 via a cylinder mounting base, and the output end of the push cylinder 71 is connected to the horizontal guide rail 4 via a pin; an induction switch 72, which is installed in the lower groove 22, and the induction switch 72 is a prior art sensor; a power supply 73 is provided on the molding seat 2, and the induction switch 72, the power supply 73, and the push cylinder 71 are electrically connected; and a locking assembly 74, which locks the position between the horizontal guide rail 4 and the lower groove 22.

[0045] Reference Figure 6 , Figure 7As shown, the locking assembly 74 includes a locking block 741, which is installed on the lower surface of the horizontal guide rail 4; a locking pin 742, which is slidably disposed on the locking block 741; a third spring is connected between the locking pin 742 and the locking block 741, and the third spring plays a reset role; a locking groove 221 corresponding to the position of the locking pin 742 is provided on the side wall of the lower groove 22; and an unlocking block 743, which is slidably disposed in the locking block 741; a fourth spring is connected between the unlocking block 743 and the locking block 741, and the fourth spring plays a reset role; the lower end of the unlocking block 743 is located between the locking pins 742; an unlocking groove 744 is provided on the side of the unlocking block 743; in the initial state, the unlocking block 743 is located between the locking pins 742 and presses the locking pins 742 to both sides, at which time the third spring is in a compressed state.

[0046] In actual operation, the trigger plate 83 moves downward to press the unlocking block 743. The unlocking block 743 is pressed downward, and the downward movement of the unlocking block 743 makes the position between the unlocking groove 744 and the locking pin 742 correspond. Under the action of the third spring, the locking pin 742 moves towards the unlocking groove 744, thereby disengaging from the locking groove 221, thus unlocking the position between the locking block 741 and the forming seat 2, that is, the position of the horizontal guide rail 4 is unlocked. At the same time, the trigger block 84 descends with the trigger plate 83 and triggers the induction switch 72. The induction switch 72, the power supply 73, and the push cylinder 71 form a closed circuit, and the push cylinder 71 is activated. The push cylinder 71 pushes the horizontal guide rail 4 to flip, thereby assisting in the forming of the sheet metal.

[0047] The implementation principle of this embodiment is as follows:

[0048] Step 1: Pressing and Initial Bending

[0049] The sheet is placed on the floating pressure surface 3, and the clamping mechanism 6 fixes the end of the sheet; the upper base 9 descends, and the forming punch 92 cooperates with the floating pressure surface 3 to clamp the middle of the sheet. The floating pressure surface 3 is pressed and retracts, and the middle of the sheet enters the forming groove 21, with both ends curving upward.

[0050] Step 2: Follow-up Compensation

[0051] The upward tilt of the plate end causes the clamping seat 61 to rotate adaptively via the rotating rod 62, maintaining the clamping force perpendicular to the plate end; at the same time, the movable base 5 slides along the horizontal guide rail 4 to compensate for the horizontal contraction displacement of the plate end.

[0052] Step 3: Linkage Trigger and Unlock / Unlock

[0053] The rotation of the clamping seat 61 causes the outer protrusion 81 to press the extrusion part 82 downward, which in turn presses the trigger plate 83 to descend.

[0054] The trigger plate 83 presses down the unlocking block 743, so that the unlocking groove 744 is aligned with the locking pin 742. The locking pin 742 retracts and disengages from the locking groove 221 under the action of the spring, unlocking the horizontal guide rail 4.

[0055] At the same time, when the horizontal guide rail 4 flips, the extrusion protrusion 652 is squeezed by the fixed extrusion block 653, pushing the limit card 651 into the limit card slot 611 and locking the angle of the clamping seat 61.

[0056] Step 4: Flipping and Propelling Shaping

[0057] Trigger plate 83 drives trigger block 84 to move down and trigger induction switch 72. Power supply 73 is turned on and push cylinder 71 is started. Push cylinder 71 drives horizontal guide rail 4 to flip, and auxiliary plate completes bending.

[0058] Step 5: Demolding and Resetting

[0059] After bending, the upper substrate 9 rises, and the nitrogen spring 31 lifts the floating pressure surface 3 to push out the formed plate.

[0060] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A power transformer shell forming and processing equipment, characterized in that, include: The lower base has a molding seat installed inside it, and a molding groove is provided in the middle of the molding seat; A floating pressure surface is mounted on the lower base by sliding up and down via a nitrogen spring, and the floating pressure surface is located in the forming groove. A horizontal guide rail is provided in a recessed groove on the surface of the forming seat; A movable base is slidably mounted on the horizontal guide rail, and a resistance spring is connected between the movable base and the horizontal guide rail. A clamping mechanism is provided on the movable base, and the clamping mechanism can adaptively rotate to follow the tilting angle of the plate when the plate is bent. A booster mechanism is disposed on the forming seat, and the booster mechanism is used to drive the horizontal guide rail to perform booster forming when the sheet is bent; The linkage mechanism is set on the horizontal guide rail, and the linkage mechanism will coordinate and cooperate with the push mechanism and the clamping mechanism. The upper base is slidably guided to the lower base by guide posts, and a forming punch that mates with the forming seat is installed at the lower end of the upper base.

2. The power transformer shell forming and processing equipment according to claim 1, characterized in that, The inner end of the horizontal guide rail is rotatably mounted in the lower groove via a pin, and a guide rail groove is formed on the surface of the horizontal guide rail.

3. The power transformer shell forming and processing equipment according to claim 2, characterized in that, The clamping mechanism includes: A clamping seat is rotatably mounted on a movable base via a rotating rod, and a first spring connects the clamping seat and the rotating rod. The upper clamping plate is slidably mounted on the clamping seat, and a hydraulic rod is fitted between the upper clamping plate and the clamping seat. The limiting component limits the angle of the clamping seat when the horizontal guide rail rotates.

4. The power transformer shell forming and processing equipment according to claim 3, characterized in that, The limiting component includes: The limiting card is slidably mounted on the movable base. A second spring is connected between the limiting card and the movable base. The side of the clamping seat is provided with a limiting card groove that engages with the limiting card. The extrusion protrusion is installed on the lower outer side of the limiting clip; A fixed extrusion block is installed on the forming seat, and a mating groove is provided on the side of the fixed extrusion block to mate with the extrusion protrusion.

5. The power transformer shell forming and processing equipment according to claim 4, characterized in that, The mating groove is located at the lower end of the fixed extrusion block, and the extrusion protrusion in the initial state corresponds to the position of the mating groove.

6. The power transformer shell forming and processing equipment according to claim 2, characterized in that, The booster mechanism includes: The lower end of the push cylinder is rotatably mounted on the forming seat via a cylinder mounting base, and the output end of the push cylinder is connected to the horizontal guide rail via a pin. An inductive switch is installed in the lower groove. A power supply is provided on the molding base. The inductive switch, the power supply, and the push cylinder are electrically connected. The locking component locks the position between the horizontal guide rail and the lower groove.

7. The power transformer shell forming and processing equipment according to claim 6, characterized in that, The locking component includes: A locking block is installed on the lower surface of the horizontal guide rail; A locking pin is slidably mounted on a locking block, and a third spring connects the locking pin to the locking block. A locking groove corresponding to the position of the locking pin is provided on the side wall of the lower groove. The unlocking block is slidably disposed within the locking block. A fourth spring connects the unlocking block and the locking block. The lower end of the unlocking block is located between the locking pins, and an unlocking groove is provided on the side of the unlocking block.

8. The power transformer shell forming and processing equipment according to claim 7, characterized in that, The linkage mechanism includes: An external protrusion is mounted on the lower surface of the clamping seat; The extrusion part is slidably mounted on the movable base. A fifth spring connects the extrusion part and the movable base. The outer protrusion part and the extrusion part are in an extrusion fit. The trigger plate is slidably mounted in the movable base. A sixth spring connects the trigger plate and the movable base. The upper end of the trigger plate and the unlocking block are in a pressing fit. The trigger block is installed on the lower surface of the trigger plate, and its position corresponds to that of the inductive switch.

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